Heat-radiating drum.



No. 756,970. PATENTED APR. 12, 1904. E. J. & F. A. LANGELL. HEAT RADIATING DRUM.

APPLICATION FILED JUNE 25, 1903.

N0 MODEL.

J'I-1:.NORRI5 Brrzns co. FNOTO-UTHD, WASHINGTON. n c,

UNITED STATES Patented April 12, 1904.

PATENT OFFICE.

' EDWARD J. LANGELL AND FRANK A. LANGELL, or NEW BALTIMORE,

. MICHIGAN.

HEAT-BADIATING DRUM.

SPEGIFIGATION "forming part of Letters Patent No. 756,970, dated April 12, 1904.

Application filed-Tune 25, 1903.

To all whom it may concern:

Be it known that we, EDWARD J. LANGELL and FRANK A. LANGELL, citizens of the United States, residing at New Baltimore, in the county of Macomb, State of Michigan, have invented certain new and useful Improvements in Heat-RadiatingDrums; and we do. declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, andto the figures of reference markedthereon, which form a part of this specification.

This invention relates to a heat-radiating drum for stovepipes; and it consists in the construction and arrangement of parts hereinafter fully set forth, and pointed out in the claims.

The object of the invention is to provide simple and eflicient means for diverting the caloric current from a direct passage through the stovepipe, so as to cause said current to double back through the drum in a manner to allow of its heat being radiated therefrom.

The above object is attained by the structure illustrated in the accompanying drawings, in which Figure 1 is a vertical central section through a drum involving our invention. Fig. 2 is a like view taken at right angles to Fig. 1, showing the removable bottom end detached. Fig. 3 is an inverted plan view of the drum with said bottom end removed and the damper closed. Fig. 1 is a horizontal section as on line 4: 4: of Fig. 2.

Referring to the characters of reference, 1 designates the drum, which may be of any desired diameter and of any suitable material. The upper end of the drum is closed by a conical top 2, through which passes a section of Stovepipe 3, that depends centrally within the drum, the lower end of said pipe terminating near the longitudinal center of the drum.

Crossing between the sides of the drum are the vertical partitions 4, which divide the interior of the drum into a plurality of chambers, the two outer chambers of which are designated at 5 and the central chamber inter- Serial No. 162,990. (No n odel.)

posed between said outer chambers is .desig- 5 nated at 6, which in turn is divided by the pipe 3 into two equal parts.

The lower ends of the partitions 4 are provided with the ledges 7. Pivoted in the drum at the bottom of the central chamber is arothe ledges 7 and engage under the other of said ledges, thereby closing the bottom of the dividedcentral chamber 6, as shown in Fig. 1.

The bottom 11 of the drum is conical in shape and is removably fitted to the lower end thereof. Passing through said bottom is a 5 section of pipe 12, through which the products of combustion are adapted to pass into the drum. The side chambers 5 are open at the top, as are also the divisions of the central chamber 6, and all of said chambers are in com- 7 munication through the space 13 at the top of the drum.

It will be understood that the pipe-section 12 is connected with the pipe leading from a stove or other heating apparatus and that the pipe-section 3 is connected with the flue.

In order to afford proper draft when a fire is started, the damper 9 is first turned to a vertical position, as shown in Fig. 2 and by dotted lines in Fig. 1, to providea direct passage for the draft through the drum. After the fire has attained suflicient headway the damper is turned so as to close the botton of the divided central chamber 6, causing the caloric current to pass upwardly on each side 8 5 of the drum through the side chambers 5, thence downwardly through the divided chamber 6 on each of the pipes 3, and upwardly into the lower end of said pipe-section,

through which it escapes from the drum, as 9 shown by the arrows in Fig. 1. By this arrangement the caloric current is diverted from a direct passage through the drum and is caused to pass upwardly through the side chambers 5 and downwardly through. the central chambers 6 into the lower end of pipe 3. In the upward passage of said current it heats the outer wall of the drum between the terminals of the partitions 4:, and in its down- Ward passage through the central chambers 6 it heats the wall of the drum, forming the outer walls of said chambers, so that a radiation of the heat is obtained from the entire exterior surface of the drum, thereby utilizing the products of combustion before they escape to the flue.

The removable bottom 11 affords excellent facility for cleaning the drum, so that soot may be removed from the interior thereof and all parts thoroughly cleaned when ever desired. The ledges or outwardly-turned flanges 8 at the tops of the partitions 4 direct the heat outwardly against the conical top before it enters the upper ends of the chambers 6, thereby increasing the radiation thereof.

Having thus fully set forth our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a heat-radiating drum, the combination of a drum having vertical partitions therein dividing said drum into side and central chambers, a pipe-section leading from the drum communicating with said central chambers, the outer wall of the central chambers being formed by the wall of the drum, a damper to close the bottom of the central chambers, apipe-section leading into the drum lindrical body having Vertical partitions therein dividing said body into aplurality of chambers, comprising side and central chambers, the outer wall of the central chambers being formed by the wall of the drum, a pipe-section extending centrally into the drum and communicating at its lower end with the central chambers, a damper to close the lower ends of the central chambers below the end of said pipe-section, a pipe-section leading from the lower end of the drum, the central chambers communicating with the side chambers at the top of the drum, and the side chambers communicating with the pipe-section leading from the drum.

In testimony whereof we sign this specification in the presence of two Witnesses.

EDWARD J. LANGELL. FRANK A. LANGELL.

Witnesses:

ARI. E. WOODRUFF, HENRY B. SMITH. 

